tnsnames.org配置监听实例

方法一：
oracle配置tnsnames.ora
orcl =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = IP地址)(PORT = 1521))
)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
方法二：
show parameter service_name
alter system register;
方法三：
用Net Manager配置